DE202009012684U1 - Vehicle classifier with a device for detecting a rolling wheel - Google Patents
Vehicle classifier with a device for detecting a rolling wheel Download PDFInfo
- Publication number
- DE202009012684U1 DE202009012684U1 DE202009012684U DE202009012684U DE202009012684U1 DE 202009012684 U1 DE202009012684 U1 DE 202009012684U1 DE 202009012684 U DE202009012684 U DE 202009012684U DE 202009012684 U DE202009012684 U DE 202009012684U DE 202009012684 U1 DE202009012684 U1 DE 202009012684U1
- Authority
- DE
- Germany
- Prior art keywords
- radar
- vehicle
- wheel
- speed
- classification device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/015—Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Klassifikationseinrichtung für Fahrzeuge, welche die Länge (l) eines Fahrzeugs (12; 28; 40, 42; 46, 50), die Zahl der Räder des Fahrzeugs (12; 28; 40, 42; 46, 50) und damit der Achsen und deren Verteilung über die Länge (l) des Fahrzeugs (12; 28; 40, 42; 46, 50) zu ermitteln vermag, mit einer neben einer Fahrbahn (8) angeordneten Geschwindigkeitsmesseinrichtung für ein rotierendes auf der Fahrbahn (8) rollendes Rad (18), umfassend einen Radarsender, einen Radarempfänger, eine Radar-Sende- und -empfangsantenne und eine Auswerteeinrichtung für empfangene reflektierte Radarsignale, bei der die Strahlungskeule der Radar-Sendeantenne im Wesentlichen auf die Nabe des Rades (18) und unter einem Winkel zwischen 0° und 180° zur Bewegungsrichtung (W) des rollenden Rades (18) ausgerichtet ist.Classification device for vehicles which measures the length (l) of a vehicle (12; 28; 40,42; 46,50), the number of wheels of the vehicle (12; 28; 40,42; 46,50) and thus the axles and whose distribution over the length (1) of the vehicle (12; 28; 40,42; 46,50) can be determined by means of a speed measuring device arranged next to a roadway (8) for a rotating wheel (18) rolling on the roadway (8) ), comprising a radar transmitter, a radar receiver, a radar transmitting and receiving antenna and a received reflected radar signal evaluation device, wherein the radiant lobe of the radar transmitting antenna is substantially at the hub of the wheel (18) and at an angle between 0 ° and 180 ° to the direction of movement (W) of the rolling wheel (18) is aligned.
Description
Die Erfindung betrifft einen Fahrzeugklassifikator mit einer Einrichtung zur Erkennung eines rollenden Rades.The The invention relates to a vehicle classifier with a device to detect a rolling wheel.
Aus
der
Aufgabe der Erfindung ist es, einen Fahrzeugklassifikator mit einer Einrichtung zur Erkennung eines rollenden Rades vorzuschlagen, der den vorgenannten Nachteil vermeidet.task The invention is a vehicle classifier with a device to suggest for the recognition of a rolling wheel, the aforementioned Disadvantage avoids.
Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The The object is solved by the features of claim 1.
Die erfindungsgemäße Klassifikationseinrichtung für Fahrzeuge vermag die Länge eines Fahrzeugs, die Zahl der Räder des Fahrzeugs und damit der Achsen und deren Verteilung über die Länge des Fahrzeugs zu ermitteln. Sie ist mit einer neben einer Fahrbahn angeordneten Geschwindigkeitsmesseinrichtung für ein rotierendes auf der Fahrbahn rollendes Rad ausgerüstet, welche einen Radarsender, einen Radarempfänger, eine Radar-Sende- und -empfangsantenne und eine Auswerteeinrichtung für empfangene reflektierte Radarsignale umfasst, bei der die Strahlungskeule der Radar-Sendeantenne im Wesentlichen auf die Nabe des Rades und unter einem Winkel zwischen 0° und 180° zur Bewegungsrichtung des rollenden Rades ausgerichtet ist.The Classification device according to the invention for Vehicles can measure the length of a vehicle, the number of vehicles Wheels of the vehicle and thus the axes and their distribution over to determine the length of the vehicle. She is with one arranged next to a road speed measuring device equipped for a rotating wheel rolling on the road, which includes a radar transmitter, a radar receiver, a radar transmitter and receiving antenna and an evaluation device for received includes reflected radar signals, wherein the radiation lobe of the Radar transmitting antenna essentially on the hub of the wheel and under one Angle between 0 ° and 180 ° to the direction of movement is aligned with the rolling wheel.
Die Geschwindigkeitsmesseinrichtung vermag mit einer Radar-Geschwindigkeitsmessung die Länge eines Fahrzeugs, die Zahl der Räder und damit der Achsen des Fahrzeugs und deren räumliche Verteilung über die Länge des Fahrzeugs zu ermitteln, wobei diese auch den Zeitpunkt des Beginns der Messung bestimmt. Die Fahrzeugklasse wird vorteilhafterweise nur an Hand der Auswertung des Radarechosignalprofils erkannt.The Speed measuring device can with a radar speed measurement the length of a vehicle, the number of wheels and thus the axes of the vehicle and their spatial distribution over to determine the length of the vehicle, these too determines the time of the beginning of the measurement. The vehicle class is advantageously only on the basis of the evaluation of the radar echo signal profile recognized.
Bei einer bevorzugten Ausführungsform der Detektionseinrichtung ist die Strahlungskeule der Radar-Sendeantenne unter einem Winkel von ±30° bis ±60°, insbesondere aber von ±45° zur Bewegungsrichtung des rollenden Rades ausgerichtet. Die Schrägstellung der Strahlungskeule erlaubt eine feine Auflösung des Messergebnisses, da sich das Rad länger in der Strahlungskeule befindet.at a preferred embodiment of the detection device is the radiation lobe of the radar transmitting antenna at an angle from ± 30 ° to ± 60 °, in particular but of ± 45 ° to the direction of movement of the rolling Rades aligned. The inclination of the radiation lobe allows a fine resolution of the measurement result, since the wheel is longer in the radiation lobe.
Bei der erfindungsgemäßen Klassifikationseinrichtung erfolgt die Erkennung des auf einer Unterlage rollenden Rades mittels einer Radar-Geschwindigkeitsmessung, wobei die Fortbewegungsgeschwindigkeit eines mit dem Rad verbundenen bewegten Systems -verkörpert durch die Nabe des Rades- auf der Unterlage und die Umfangsgeschwindigkeit einzelner Umfangsabschnitte des Rades erfasst und zueinander in Beziehung gesetzt werden.at the classification device according to the invention the detection of rolling on a pad wheel by means of a radar speed measurement, the speed of travel a moving system connected to the wheel through the hub of the wheel- on the underlay and the peripheral speed detected individual peripheral portions of the wheel and to each other in Relationship be set.
Vorzugsweise wird dabei die Fortbewegungsgeschwindigkeit des Umfangsabschnitts, der dem Berührungspunkt des Rades mit der Unterlage gegenüber liegt, mit der Fortbewegungsgeschwindigkeit des Umfangsabschnitts am Berührungspunkt verglichen.Preferably is the speed of movement of the peripheral portion, the opposite of the point of contact of the wheel with the pad is located, with the speed of movement of the peripheral portion compared at the point of contact.
Die
Erfindung geht dabei von der Überlegung aus, dass der Umfangsabschnitt
des Rades, der dem Berührungspunkt des Rades mit der Unterlage
gegenüber liegt, gegenüber dem beweg ten System schneller
ist als das bewegte System. Der Umfangsabschnitt am Berührungspunkt
des Rades mit der Unterlage ist hingegen am Berührungspunkt
langsamer als das bewegte System. Die Radar-Geschwindigkeitsmesseinrichtung
erzeugt dann ein in
Die Zahl der Achsen eines vorbeifahrenden Fahrzeugs wird aus der Zahl unmittelbar aufeinander folgender Geschwindigkeitsmaxima und -Minima ermittelt.The Number of axles of a passing vehicle will be out of the number immediately successive maximum velocities and minima determined.
In einer bevorzugten Weiterbildung der Erfindung erkennt die Klassifikationseinrichtung aus dem Vorhandensein einer Lücke im Radarsignalprofil, d. h. dem Fehlen eines Radarechos ein Fahrzeuggespann.In A preferred embodiment of the invention recognizes the classification device from the presence of a gap in the radar signal profile, d. H. the lack of a radar echo a vehicle team.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung, welche in Verbindung mit den beigefügten Zeichnungen die Erfindung an Hand eines Ausführungsbeispiels erläutert.Further Features and advantages of the invention will become apparent from the following Description, which in conjunction with the attached Drawings the invention explained with reference to an embodiment.
Es zeigtIt shows
In
In
den
Die
An
den PKW
Durch die gemeinsame Auswertung der Fahrzeuglänge und der Verteilung der Signalmaxima über die Länge des jeweiligen Fahrzeugs ist bei der Straßenverkehrsordnung entsprechenden Fahrzeugen eine Klassifizierung durch die vorliegende Erfindung leicht möglich. Nicht einmal ein Defekt an einem Fahrzeug wie etwa eine defekte Auspuffanlage kann zu einer Fehlinterpretation des Signalprofils führen. Ein weiterer Vorteil ist die schnelle Durchführbarkeit der Klassifizierung.Due to the joint evaluation of the vehicle length and the distribution of the signal maximums over the length of the respective vehicle, a classification by the present invention is provided in the traffic regulations corresponding vehicles easily possible. Not even a defect in a vehicle such as a faulty exhaust system can lead to a misinterpretation of the signal profile. Another advantage is the fast implementation of the classification.
- 88th
- Fahrbahnroadway
- 1010
- Radar-GeschwindigkeitsmesseinrichtungRadar speed measuring device
- 1212
- Fahrzeugvehicle
- 1414
- Pfahlstake
- 1616
- Radarsensorradar sensor
- 1818
- Radwheel
- 2020
- Radar-GeschwindigkeitsmesssignalRadar speed measuring signal
- 2828
- SattelzugTractor
- 3030
-
Geschwindigkeitsmessprofil
von
28 Speed measurement profile of28 - 3232
-
Ansteigende
Flanke von
28 Rising edge of28 - 3434
- Signalmaximumsignal maximum
- 4040
- LKWtruck
- 4141
-
Signalminimum
zwischen
40 und42 Signal minimum between40 and42 - 4242
- Anhängerpendant
- 4444
-
Radar-Geschwindigkeitsmesssignal
von
40 Radar speed measurement signal from40 - 4646
- PKWcar
- 4848
-
Signalprofil
von
46 Signal profile of46 - 5050
- Wohnwagencaravan
- 5252
-
Signalprofil
von
50 Signal profile of50 - 5454
-
Signalminimum
zwischen
46 und50 Signal minimum between46 and50 - ll
- Länge (eines Fahrzeugs)length (of a vehicle)
- LL
-
Lücke
zwischen
40 und42 Gap between40 and42 - D1D1
-
Lücke
zwischen
46 und50 Gap between46 and50 - WW
-
Weg
(des Rades
18 )Path (of the wheel18 ) - V'V '
-
Geschwindigkeitswert
von
12 Speed value of12
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006054981 B3 [0002, 0010] - DE 102006054981 B3 [0002, 0010]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202009012684U DE202009012684U1 (en) | 2008-08-09 | 2009-08-06 | Vehicle classifier with a device for detecting a rolling wheel |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008037233A DE102008037233B4 (en) | 2008-08-09 | 2008-08-09 | Vehicle classifier with a device for detecting a tolling wheel |
DE102008037233.1 | 2008-08-09 | ||
DE202009012684U DE202009012684U1 (en) | 2008-08-09 | 2009-08-06 | Vehicle classifier with a device for detecting a rolling wheel |
Publications (1)
Publication Number | Publication Date |
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DE202009012684U1 true DE202009012684U1 (en) | 2009-12-24 |
Family
ID=41429137
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008037233A Active DE102008037233B4 (en) | 2008-08-09 | 2008-08-09 | Vehicle classifier with a device for detecting a tolling wheel |
DE202009012684U Expired - Lifetime DE202009012684U1 (en) | 2008-08-09 | 2009-08-06 | Vehicle classifier with a device for detecting a rolling wheel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008037233A Active DE102008037233B4 (en) | 2008-08-09 | 2008-08-09 | Vehicle classifier with a device for detecting a tolling wheel |
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DE (2) | DE102008037233B4 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011101115A3 (en) * | 2010-02-16 | 2011-10-27 | Niechoj Electronic Gmbh | Roadway-integrated radar sensor |
WO2012152597A1 (en) * | 2011-05-11 | 2012-11-15 | Morpho | Method and device for counting the axles of a vehicle on the basis of speed measurements taken by doppler effect |
DE102010010656B4 (en) * | 2010-03-09 | 2014-12-18 | Rtb Gmbh & Co. Kg | Method and radar speed measuring device for the classification of vehicles |
US20150234042A1 (en) * | 2014-02-19 | 2015-08-20 | Kapsch Trafficcom Ag | Device and method for detecting an axle of a vehicle |
WO2016026568A1 (en) * | 2014-08-22 | 2016-02-25 | Jenoptik Robot Gmbh | Method and axle-counting device for contact-free axle counting of a vehicle and axle-counting system for road traffic |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010024152B4 (en) | 2010-06-17 | 2014-09-18 | Rtb Gmbh & Co. Kg | Arrangement for measuring the height of a vehicle |
ES2544736T3 (en) | 2011-06-21 | 2015-09-03 | Kapsch Trafficcom Ag | Procedure and device to detect a rotating wheel |
DK2538238T3 (en) * | 2011-06-21 | 2014-02-17 | Kapsch Trafficcom Ag | Devices and method for detection of wheels |
DK2538239T3 (en) | 2011-06-21 | 2014-02-24 | Kapsch Trafficcom Ag | Devices and method for detection of wheels |
JP5911681B2 (en) * | 2011-08-22 | 2016-04-27 | 株式会社東芝 | Moving rotator detection device |
AT512491B1 (en) | 2012-02-02 | 2013-11-15 | Sierzega Elektronik Gmbh | METHOD AND DEVICE FOR DETECTING VEHICLE AXES IN TRAFFIC DETECTION DEVICES |
DE102012008608B3 (en) * | 2012-04-27 | 2013-04-18 | Rtb Gmbh & Co. Kg | Classification method for vehicles e.g. bus, in traffic roadway, involves providing light-based distance measuring device for measuring the outer contour of the vehicles so as to detect the length and width of the vehicle |
DK2682778T3 (en) | 2012-07-06 | 2015-01-19 | Kapsch Trafficcom Ag | METHOD OF DETECTING A WHEEL ON A VEHICLE PATENT REQUIREMENT |
EP2682779B1 (en) | 2012-07-06 | 2014-10-29 | Kapsch TrafficCom AG | Method for detecting a wheel of a vehicle |
CA2816227A1 (en) * | 2012-07-06 | 2014-01-06 | Kapsch Trafficcom Ag | Method for detecting a wheel of a vehicle |
DE102012014182B3 (en) * | 2012-07-18 | 2013-04-18 | Rtb Gmbh & Co. Kg | Classification method for vehicles, particularly road transport, involves determining horizontal diagonal of vehicle, where displacement of single points of vehicle and radar beam of stationary objects are detected |
DE102012021461A1 (en) | 2012-10-31 | 2013-05-08 | Daimler Ag | Method for vehicle classification, such as vehicle size, vehicle mass and type of vehicle, for operating driving assistance device, involves detecting wheel of vehicle by radar sensor, and generating super-positioned overall signal |
ES2629906T3 (en) | 2012-12-14 | 2017-08-16 | Kapsch Trafficcom Ag | Procedure to detect a wheel of a vehicle |
JP6375744B2 (en) * | 2014-07-16 | 2018-08-22 | 株式会社デンソー | On-vehicle radar device and notification system |
DE102015009308B4 (en) * | 2015-07-18 | 2022-07-07 | Audi Ag | Method for operating a driver assistance system and motor vehicle |
DE102018206963B3 (en) | 2018-05-04 | 2019-04-25 | Audi Ag | Method for determining an absolute speed of another road user and motor vehicle |
DE102019220526A1 (en) * | 2019-12-23 | 2021-06-24 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method and device for determining at least one articulation angle of a vehicle combination |
DE102021209150A1 (en) | 2021-08-20 | 2023-02-23 | Zf Friedrichshafen Ag | Method for monitoring a work environment of a work machine |
Citations (1)
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DE102006054981B3 (en) | 2006-11-22 | 2008-06-19 | Rtb Gmbh & Co. Kg | Classification device for vehicles, comprises measuring unit and trigger unit, where trigger unit determines time point at which vehicle has reached defined position with respect to classification device |
Family Cites Families (3)
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---|---|---|---|---|
DE2928907A1 (en) * | 1979-07-18 | 1981-06-19 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR CLASSIFYING MOVING TARGETS |
KR960001777A (en) * | 1994-06-01 | 1996-01-25 | 제임스 디. 튜턴 | Frequency Domain Processing Method of Doppler Signal for Vehicle Surveillance System |
DE19928624C2 (en) * | 1999-06-23 | 2002-01-17 | Siegfried Hillenbrand | chassis control |
-
2008
- 2008-08-09 DE DE102008037233A patent/DE102008037233B4/en active Active
-
2009
- 2009-08-06 DE DE202009012684U patent/DE202009012684U1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006054981B3 (en) | 2006-11-22 | 2008-06-19 | Rtb Gmbh & Co. Kg | Classification device for vehicles, comprises measuring unit and trigger unit, where trigger unit determines time point at which vehicle has reached defined position with respect to classification device |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011101115A3 (en) * | 2010-02-16 | 2011-10-27 | Niechoj Electronic Gmbh | Roadway-integrated radar sensor |
DE102010010656B4 (en) * | 2010-03-09 | 2014-12-18 | Rtb Gmbh & Co. Kg | Method and radar speed measuring device for the classification of vehicles |
WO2012152597A1 (en) * | 2011-05-11 | 2012-11-15 | Morpho | Method and device for counting the axles of a vehicle on the basis of speed measurements taken by doppler effect |
FR2975192A1 (en) * | 2011-05-11 | 2012-11-16 | Morpho | METHOD AND APPARATUS FOR COUNTING VEHICLE AXLES FROM SPEED MEASUREMENTS TAKEN BY DOPPLER EFFECT |
US20150234042A1 (en) * | 2014-02-19 | 2015-08-20 | Kapsch Trafficcom Ag | Device and method for detecting an axle of a vehicle |
EP2910968A1 (en) * | 2014-02-19 | 2015-08-26 | Kapsch TrafficCom AG | Device and method for detecting a wheel axle of a vehicle |
WO2016026568A1 (en) * | 2014-08-22 | 2016-02-25 | Jenoptik Robot Gmbh | Method and axle-counting device for contact-free axle counting of a vehicle and axle-counting system for road traffic |
Also Published As
Publication number | Publication date |
---|---|
DE102008037233B4 (en) | 2010-06-17 |
DE102008037233A1 (en) | 2010-03-25 |
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Legal Events
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Effective date: 20100128 |
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R150 | Utility model maintained after payment of first maintenance fee after three years | ||
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20120720 |
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R151 | Utility model maintained after payment of second maintenance fee after six years | ||
R152 | Utility model maintained after payment of third maintenance fee after eight years | ||
R071 | Expiry of right |